KātyāyanaKātyāyana (कात्यायन) also spelled as Katyayana (est. 6th to 3rd century BCE) was a Sanskrit grammarian, mathematician and Vedic priest who lived in ancient India. According to some legends, he was born in the Katya lineage originating from Vishwamitra, thus called Katyayana. The Kathāsaritsāgara mentions Kātyāyana as another name of Vararuci, a re-incarnation of Lord Shiva's gana or follower Pushpadanta.
PāṇiniIAST (Devanagari: पाणिनि, paːɳin̪i) was a Sanskrit philologist, grammarian, and revered scholar in ancient India, variously dated between the 6th and 4th century BCE. Since the discovery and publication of his work Aṣṭādhyāyī by European scholars in the nineteenth century, Pāṇini has been considered the "first descriptive linguist", and even labelled as “the father of linguistics”. His approach to grammar was influential on such foundational linguists as Ferdinand de Saussure and Leonard Bloomfield.
AṣṭādhyāyīThe (Devanagari अष्टाध्यायी) is a grammar that describes a form of an early Indo-Aryan language: Sanskrit. Authored by Sanskrit philologist and scholar Pāṇini and dated to around 500 BCE, it describes the language as current in his time, specifically the dialect and register of an élite of model speakers, referred to by Pāṇini himself as śiṣṭa. The work also accounts both for some features specific to the older Vedic form of the language, as well as certain dialectal features current in the author’s time.
BhartṛhariBhartṛhari (Devanagari: भर्तृहरि; also romanised as Bhartrihari; fl. c. 5th century CE) was a Hindu linguistic philosopher to whom are normally ascribed two influential Sanskrit texts: the Trikāṇḍī (including Vākyapadīya), on Sanskrit grammar and linguistic philosophy, a foundational text in the Indian grammatical tradition, explaining numerous theories on the word and on the sentence, including theories which came to be known under the name of Sphoṭa; in this work Bhartrhari also discussed logical problems such as the liar paradox and a paradox of unnameability or unsignifiability which has become known as Bhartrhari's paradox, and the Śatakatraya, a work of Sanskrit poetry, comprising three collections of about 100 stanzas each; it may or may not be by the same author who composed the two mentioned grammatical works.
PatanjaliPatanjali (Patañjali), also called Gonardiya or Gonikaputra, was a Siddhar; a Hindu author, mystic and philosopher. Estimates based on analysis of his works suggests that he may have lived between the 2nd century BCE and the 4th century CE. He is believed to be an author and compiler of a number of Sanskrit works. The greatest of these are the Yoga Sutras, a classical yoga text. There is speculation as to whether the sage Patañjali is the author of all the works attributed to him, as there are a number of known historical authors of the same name.
RigvedaThe Rigveda or Rig Veda (ऋग्वेद , from "praise" and "knowledge") is an ancient Indian collection of Vedic Sanskrit hymns (sūktas). It is one of the four sacred canonical Hindu texts (śruti) known as the Vedas. Only one Shakha of the many survive today, namely the Śakalya Shakha. Much of the contents contained in the remaining Shakhas are now lost or are not available in the public forum. The Rigveda is the oldest known Vedic Sanskrit text. Its early layers are among the oldest extant texts in any Indo-European language.
VyākaraṇaVyākaraṇa (व्याकरण, ˈʋjaːkɐrɐɳɐ) refers to one of the six ancient Vedangas, ancillary science connected with the Vedas, which are scriptures in Hinduism. Vyākaraṇa is the study of grammar and linguistic analysis in Sanskrit language. Pāṇini and Yāska are the two celebrated ancient scholars of Vyākaraṇa; both are dated to several centuries prior to the start of the common era, with Pāṇini likely from the fifth century BCE. Pāṇini's Aṣṭādhyāyī is the most important surviving text of the Vyākaraṇa traditions.